Terry Dactyll Posted September 23, 2012 Share Posted September 23, 2012 Bruno.... Another great example.... Tell me.... Is the Cordaianthus - seed cone pretty scarce then in the fossil record?... I see stems, leaf sections and seeds but no other Cordaianthus? Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
docdutronc Posted September 24, 2012 Share Posted September 24, 2012 (edited) Bruno.... Another great example.... Tell me.... Is the Cordaianthus - seed cone pretty scarce then in the fossil record?... I see stems, leaf sections and seeds but no other Cordaianthus? Hi Steeve Yes it is quite scarce for me in 30 years of collecting, I found three complete samples..... best regards Edited September 24, 2012 by docdutronc Link to comment Share on other sites More sharing options...
Terry Dactyll Posted September 25, 2012 Share Posted September 25, 2012 Bruno... WOW... That is scarce knowing your contacts and the efforts you put in collecting.... 1 every 10 years!.... (and nice finds)... I'll make sure I look after it..... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
docdutronc Posted October 20, 2012 Share Posted October 20, 2012 (edited) Hi my friends Here are two Cordaites leaf who wear large and strange circular structures, these forms whose layout is random seem to correspond to mechanical cutaway on leaf blades , their interpretation remains enigmatic. Is it a phenomenon of desiccation ?, or a mechanical phenomenon post fossilization ?. then how is it that these strange hollow structures are only localized only on leaf and not on the rest of the shale support . We were seen in the lower trace in the form of "S" , these samples come from Liévin basin ... Best regards Bruno http://forums-naturalistes.forums-actifs.com/t5194-curiosites-de-terrain Edited October 20, 2012 by docdutronc Link to comment Share on other sites More sharing options...
Terry Dactyll Posted October 20, 2012 Share Posted October 20, 2012 Bruno... Another very interesting find...Were getting some very good mystery's lately... We never seem to see anything so 'random' associated with the carboniferous plants structures although a couple of the domes do look almost 'seed shaped'...weve seen randomly spaced spirorbis attached to leafs so the randomness and varying sizes must be a clue we cant ignore... I wonder if its a reaction by the plant leaf surface (ie scarring on the leaf) to being sap sucked... forming some sort of lump afterwards to seal the area... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
Auspex Posted October 20, 2012 Share Posted October 20, 2012 To me, it looks like spalling of the matrix. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
sward Posted October 20, 2012 Share Posted October 20, 2012 I found these pieces about a year ago in the Penn near Mineral Wells, TX. I picked up several pieces and threw them in the back of my truck where they've been rambling around ever since, along with other finds. Since that time, they've been beaten up pretty good, they were much larger. When I collected them, I thought they were a bit unusual, but because of the regular pattern, I finally decided they must be man made. I now find this thread and it caused me to go dig some of the pieces out of the back of my truck. These pieces look similar to the ones Missourian shows in his post #6, labelled as "Some wood still attached to a pith cast:" Are these similar to the pieces Missourian is referring to as wood? If so, it's been a heck of a learning experience for me. I had forgotten all about them until I read this post. SWardSoutheast Missouri (formerly Dallas/Ft. Worth, TX) USA Link to comment Share on other sites More sharing options...
docdutronc Posted October 20, 2012 Share Posted October 20, 2012 quote : " Are these similar to the pieces Missourian is referring to as wood?" Hi Sward Here is some wood structure ,referring to Cordaites wood and bark ,on the left side of my specimen the alveolar structure seems similar to yours ,Cordaites wood have been describeb like Dadoxylon .... Best regards Bruno Link to comment Share on other sites More sharing options...
Terry Dactyll Posted October 21, 2012 Share Posted October 21, 2012 To me, it looks like spalling of the matrix. Auspex... Do you think spalling of the matrix could result in such uniform shapes?... Its that where doubt creeps in for something naturally occuring... Cheers Steve... And Welcome if your a New Member... Link to comment Share on other sites More sharing options...
docdutronc Posted October 21, 2012 Share Posted October 21, 2012 Auspex... Do you think spalling of the matrix could result in such uniform shapes?... Its that where doubt creeps in for something naturally occuring... Hi Steve Aupex 's answer is correct ,I agree , looking more closely, there are other spalling ,mecanic alteration ...... Link to comment Share on other sites More sharing options...
sward Posted October 21, 2012 Share Posted October 21, 2012 quote : " Are these similar to the pieces Missourian is referring to as wood?" Hi Sward Here is some wood structure ,referring to Cordaites wood and bark ,on the left side of my specimen the alveolar structure seems similar to yours ,Cordaites wood have been describeb like Dadoxylon .... Best regards Bruno Huh?...and I was assuming it must have been something man made because of the regular pattern. I guess that just goes to show that you never know what you're going to find. Like my wife told me when I was showing her this thead, so I have no idea what I'm doing, I ought to take better care of things unitl I know for sure. I'm a little puzzled though because everything else in the area is marine, crinoids, gastros, etc. SWardSoutheast Missouri (formerly Dallas/Ft. Worth, TX) USA Link to comment Share on other sites More sharing options...
Dromiopsis Posted October 21, 2012 Share Posted October 21, 2012 hello! Here a leaf? Cordaites? that someone gave me a long time ago....Stephanian, Carboniferous...Alès France...that's the only thing I know....All helps are welcome Thanks in Advance D Gallery pictures http://www.flickr.com/photos/supergrevling/ Link to comment Share on other sites More sharing options...
docdutronc Posted October 21, 2012 Share Posted October 21, 2012 Hi Dromiopsis Pachycordaites lingulatus Gran'Eury comes from Alès basin ( Grand'Combe )..... Best regards Bruno Link to comment Share on other sites More sharing options...
Grenzton Posted October 21, 2012 Share Posted October 21, 2012 (edited) Hi. This leaf i found in a transgression-zone from cretaceous/carboniferous. the yelowisch colour comes from the erosion from the saltwater of the cenomanian sea. normally this rocks are greyish-black. Greets Karl Edited October 21, 2012 by Grenzton I want to die sleeping like my grandfather, not screaming like his passenger! Link to comment Share on other sites More sharing options...
docdutronc Posted October 22, 2012 Share Posted October 22, 2012 Hi Karl nice color and contrast.... Tle middle vein is curious ! Cordaites ??? Best regards Bruno Link to comment Share on other sites More sharing options...
Dromiopsis Posted October 22, 2012 Share Posted October 22, 2012 Hi Dromiopsis Pachycordaites lingulatus Gran'Eury comes from Alès basin ( Grand'Combe )..... Best regards Bruno Hello Bruno, Thanks very much for the ID....I am not an expert about plants from the carboniferous Kind regards Christian Gallery pictures http://www.flickr.com/photos/supergrevling/ Link to comment Share on other sites More sharing options...
dragonsfly Posted October 22, 2012 Share Posted October 22, 2012 Hi my friends ,I 'm coming back ,here is a link about cordaites plants from France and Spain ... Best regards Bruno http://forums-natura...olius-sternberg Bruno, Your photos set off one lightbulb after another, I wasn't making the mental transition from Artisia pith cast to an impression I found ( I didn't have any casts that BIG)...till I saw your impression...then it made sense. Link to comment Share on other sites More sharing options...
RomanK Posted October 22, 2012 Share Posted October 22, 2012 (edited) Last from my finds, Cordaites leaf coated by azurite. and malachite Edited October 27, 2012 by RomanK Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
docdutronc Posted October 22, 2012 Share Posted October 22, 2012 Nice colour ,Roman ,congratulations Bruno Link to comment Share on other sites More sharing options...
RomanK Posted October 22, 2012 Share Posted October 22, 2012 (edited) Nice colour ,Roman ,congratulations Bruno Thank you Bruno! More Permian Cordaites wood Edited October 22, 2012 by RomanK Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
itwasntme Posted October 22, 2012 Share Posted October 22, 2012 ]Just wanted to share a few of mine, I am a COMPLETE newbie to all this, (I'm not familiar with the specific names) but have collected several fossils over the years, but they have always just been called plant fossils by be haha. Most of these were collected in eastern KY and western part of wv. Pennsylvania era and have found some calamite pith from the carboniferous coal swamps. Please forgive my lack of knowledge, just wanted to share a few of my better ones. 1 Link to comment Share on other sites More sharing options...
RomanK Posted October 22, 2012 Share Posted October 22, 2012 ]Just wanted to share a few of mine, I am a COMPLETE newbie to all this, (I'm not familiar with the specific names) but have collected several fossils over the years, but they have always just been called plant fossils by be haha. Most of these were collected in eastern KY and western part of wv. Pennsylvania era and have found some calamite pith from the carboniferous coal swamps. Please forgive my lack of knowledge, just wanted to share a few of my better ones. Nice examples itwasntme! Could you put it at specific folder called "Fossil ID" to get help ? My question - why round shape? Are they the drill core fragments? Roman http://s1143.photobu.../donbassfossil/ Link to comment Share on other sites More sharing options...
itwasntme Posted October 22, 2012 Share Posted October 22, 2012 Yes RomanK, these are core drill fragments, when drilling the rock sometimes tends to break right where the fossil is. Link to comment Share on other sites More sharing options...
docdutronc Posted October 22, 2012 Share Posted October 22, 2012 quote : " just wanted to share a few of my better ones......" Hi Itwasntme ,thank you for sharing ,I like your speudo ...... Best regards Bruno Link to comment Share on other sites More sharing options...
Grenzton Posted October 22, 2012 Share Posted October 22, 2012 Hi Karl Tle middle vein is curious ! Cordaites ??? Best regards Bruno Hi Bruno. in deed, you're right, the vein is curious. maybe an specialist can determine my leaf. Greets. Karl I want to die sleeping like my grandfather, not screaming like his passenger! Link to comment Share on other sites More sharing options...
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